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Find the roots of the equation using the Quadratic Formula
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$80\cos\left(45\right)=0$
Learn how to solve equations problems step by step online. Find the roots of 80cos(45). Find the roots of the equation using the Quadratic Formula. The cosine of 45 equals . Multiply 80 times \frac{\sqrt{2}}{2}. 56.568544 is not equal to 0.